Fix missing return in WLP::remove_local_writer() (#2718)

Signed-off-by: Frank Schoenmann <fschoenm@gmail.com>
(cherry picked from commit cd7b812)

Co-authored-by: Frank Schoenmann <fschoenm@users.noreply.github.com>

src/cpp/rtps/builtin/liveliness/WLP.cpp

@@ -749,6 +749,7 @@ bool WLP::remove_local_writer(
             }
         }
         automatic_liveliness_assertion_->update_interval_millisec(min_automatic_ms_);
+        return true;
     }
     else if (W->get_liveliness_kind() == MANUAL_BY_PARTICIPANT_LIVELINESS_QOS)
     {